How autonomous trains, likely easier to deploy than autonomous vehicles, could help unclog America's congested supply chains and offer a greener alternative (Christopher Mims/Wall Street Journal)

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Christopher Mims / Wall Street Journal:
How autonomous trains, likely easier to deploy than autonomous vehicles, could help unclog America's congested supply chains and offer a greener alternative  —  Self-driving trains could be greener, carry more stuff, and help unclog America's congested supply chains.

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